Infectious-disease specialists at UT Southwestern Medical Center have demonstrated that a cannibalistic process in cells plays a key role in limiting Salmonella infection.
Salmonella, the causative agent of salmonellosis, causes many of the intestinal infections and food-related illnesses reported in the U.S. About 600 people die each year as a result of these infections, accounting for roughly 30 percent of all reported food-related deaths. It is particularly dangerous among the elderly.
There is mounting evidence that omega-3 fatty acids from fish or fish oil supplements not only help prevent cardiovascular diseases in healthy individuals, but also reduce the incidence of cardiac events and mortality in patients with existing heart disease. A new study, published in the Journal of the American College of Cardiology, extensively reviews data from a broad range of studies in tens of thousands of patients and sets forth suggested daily targets for omega-3 consumption.
Researchers have identified what they believe is the original source of malignant malaria: a parasite found in chimpanzees in equatorial Africa.
UC Irvine biologist Francisco Ayala and colleagues think the deadly parasite was transmitted to humans from chimpanzees perhaps as recently as 5,000 years ago – and possibly through a single mosquito, genetic analysis indicates.
Daytime temperature fluctuations greatly alter the incubation period of malaria parasites in mosquitoes and alter transmission rates of the disease. Consideration of these fluctuations reveals a more accurate picture of climate change's impact on malaria.
With the antibiotic Vancomycin now plagued by the first signs of bacterial resistance, a scientific collaboration centered at Duke University has identified how a candidate successor antibiotic known as Ramoplanin A2 can kill pathogenic bacteria by interrupting how they form their cell membranes.
Alexandria, VA – Restraining the use of some patients' unaffected upper limb during the subacute phase following a stroke does not appear to generate greater improvements in motor impairment and capacity than standard rehabilitation alone, according to a study published in Physical Therapy.
Our cells are controlled by billions of molecular "switches" and chemists at UC Santa Barbara have developed a theory that explains how these molecules work. Their findings may significantly help efforts to build biologically based sensors for the detection of chemicals ranging from drugs to explosives to disease markers. The research is described in the Proceedings of the National Academy of Sciences (PNAS).
Get Your Shots! Eating Ouchless Vaccines Protects Prairie Dogs in the Lab Against Plague:
Kefir, one of the world's oldest "health" drinks, did little to prevent diarrhea in young children being treated with antibiotics, say researchers at Georgetown University Medical Center (GUMC), who tested the drink in a unique and rigorous double-blind clinical trial.
While the study results, published in the Archives of Pediatrics and Adolescent Medicine, are negative, investigators say there are intriguing hints that the drink, which is rich in probiotics (live bacteria) appeared to help the children in the study who were the least healthy.
With the epidemic of childhood obesity in the United States, there is concern that overweight and obese children need to be screened for chronic medical conditions, including high cholesterol levels. However, body fat is not an effective indicator of high cholesterol in children, according to new University of Michigan research.
Those are the findings of a U-M study led by U-M pediatricians Joyce Lee, M.D., MPH, and Matthew Davis, M.D., MAPP, which will appear in the Archives of Pediatric and Adolescent Medicine.
Major depression and coronary artery disease are only related throughout an individual's lifetime, but studying how the two interact over time and in twin pairs paints a more complex picture of the associations between the conditions, according to a report in the Archives of General Psychiatry.
Almost half of Bangladeshi women with young children experience violence from their husbands, and their children appear to have a higher risk of respiratory infections and diarrhea, according to a report in the Archives of Pediatrics & Adolescent Medicine.
A phase I clinical trial enrolled its first patient only two days after U.S. Food and Drug Administration clearance of the experimental drug for a first-in-human cancer trial. Investigators from The University of Texas M. D. Anderson Cancer Center and pharmaceutical company AstraZeneca have reported their work in the Journal of Clinical Oncology.
Entire populations of North American fish already are being affected by several emerging diseases, a problem that threatens to increase in the future with climate change and other stresses on aquatic ecosystems. This is according to a noted U.S. Geological Survey researcher giving an invited talk on the subject today at the Wildlife Disease Association conference in Blaine, Wash.
Here's a question. How many gumballs of different sizes can fit in one of those containers at the mall so as to reward a well-spent quarter? It's hard to believe that most people never consider it even when guessing the number of candies in a bowl at Halloween.
But physicists at the Materials Research Science and Engineering Center at New York University recently developed a new way to help answer the question. They say the solution is found in how the particles pack in terms of many neighboring gumballs a single gumball can randomly touch within a given container.